Do you have any tips for people coming from Ruby land on how to model things with a more functional approach? For example I've been watching some of 'On Writing

Do you have any tips for people coming from Ruby land on how to model things with a more functional approach? For example I've been watching some of 'On Writing Software Well' series https://www.youtube.com/watch?v=D7zUOtlpUPw https://www.youtube.com/watch?v=D7zUOtlpUPw by DHH and found it really useful for OOP land. Also any idea on how StimulusReflex / new Hotwire compares to Phoenix LiveView if you have had a chance to look at it yet?